Nigerian air force Alpha Jet with tail number 466 has gone missing from the radar.
Nigerian defense sources said the jet disappeared from the radar around Adamawa state after it went for routine operations on Friday against Islamist militants Boko Haram, who had been on the rampage in the northeastern parts of Nigeria. The jet is the only known functioning jet engaged in operations against the militants.
The Nigerian defense also said it is also looking for two fighter pilots that were operating the jet when it disappeared from the radar. It is not known if militants shot down the jet.